/*
 * The MIT License
 *
 * Copyright 2013-2014 Florian Barras.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package jeo.gui.console;

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import jeo.common.util.Strings;

public class OutputStreamCapturer
	extends OutputStream
{
	////////////////////////////////////////////////////////////////////////////
	// ATTRIBUTE(S)
	////////////////////////////////////////////////////////////////////////////

	private final StringBuilder buffer;
	private final JConsole consumer;
	private final PrintStream previousOutputStream;


	////////////////////////////////////////////////////////////////////////////
	// CONSTRUCTOR(S)
	////////////////////////////////////////////////////////////////////////////

	public OutputStreamCapturer(final JConsole consumer, final PrintStream previousOutputStream)
	{
		this.consumer = consumer;
		this.previousOutputStream = previousOutputStream;
		buffer = Strings.createBuffer();
	}


	////////////////////////////////////////////////////////////////////////////
	// OUTPUT STREAM
	////////////////////////////////////////////////////////////////////////////

	@Override
	public void write(final int b)
		throws IOException
	{
		final char c = (char) b;
		final String value = Character.toString(c);
		buffer.append(value);
		if (value.equals("\n"))
		{
			consumer.append(buffer.toString());
			buffer.delete(0, buffer.length());
		}
		previousOutputStream.print(c);
	}
}
